Frequent Questions

What compliance provisions were amended by the MACT combustor rule issued on December 19, 2005?

EPA issued a rule on December 19, 2005, amending three bag leak detection system requirements (BLDS) for incinerators, cement kilns, and lightweight aggregate kilns. A bag leak detector is an instrument capable of monitoring changes in particulate matter emissions for the purpose of detecting fabric filter bag leaks or similar failures. In the October 12, 2005 final rule, we inadvertently included three new or revised BLDS requirements among implementation requirements taking effect on December 12, 2005 (i.e., the effective date of the October 2005 final rule), rather than, as intended, after three years when these sources begin complying with the revised emission standards. We intended to establish the compliance date for these provisions three years after promulgation because the provisions establish more stringent requirements for these sources, which cannot readily be complied with on short notice. The BLDS amendments issued on December 19, 2005, correct the date to October 14, 2008.

For more information, visit the hazardous waste combustion web page.

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